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Celestron

Celestron 18763 PowerTank Lithium LT Telescope Battery Power Pack – Rechargeable Portable 12V Power Supply for Computerised Telescopes with 8 Hour Capacity / 73.3 Wh and 1 USB Port, Black

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Features

  • PORTABLE POWER MADE FOR ASTRONOMERS: The perfect solution for most computerized telescopes, PowerTank Lithium LT features a regulated 12V connection, 8 hours of battery life, a USB port, and more. Mounts directly to the tripod leg.
  • SMALLER, LIGHTER, SAFER: Unique Lithium Nickel Manganese Cobalt Oxide chemistry delivers a steady charge over long periods and requires less maintenance than a traditional sealed lead-acid battery.
  • 5 YEARS OF DEPENDABLE PERFORMANCE: Unlike other batteries with limited lifespans, PowerTank Lithium LT will be your companion for 5 full years of astronomy adventures.
  • WORKS WITH A VARIETY OF DEVICES: 12V connection works with all current Celestron computerized telescopes. Also includes one onboard USB port to charge your smartphone or other USB-powered devices in the field.
  • AN EMERGENCY KIT ESSENTIAL: Keep PowerTank Lithium LT charged and ready for unexpected power outages.
  • UNBEATABLE WARRANTY & SUPPORT: Buy with confidence from Celestron, a leading telescope brand in California since 1960. Your purchase includes a 2-Year US Warranty and unlimited support from our team of US-based experts.

Description

Keep your telescopes, smartphones, tablets, GPS systems, cameras and other USB-powered devices charged and ready with PowerTank Lithium LT—the ideal outdoor portable-charging solution. Celestron specially designed this product with the needs of amateur astronomers in mind; it’s packed with useful features. First, you’ll find a 12V connection for your Celestron telescope—no cigarette lighter port needed. Once your telescope is connected, attach the battery securely to one of the tripod legs with the included Velcro straps so it is safely out of the way. One USB port keeps your other devices charged, and can be used simultaneously with the telescope charger. When you’re not observing, keep this battery charged and at the ready for unexpected emergencies. PowerTank Lithium LT’s unique Nickel Manganese Cobalt Oxide chemistry which delivers a steady charge over long periods and requires less maintenance than a traditional sealed lead-acid battery. It will last you many times longer thanks to its un-recharged shelf life of 10 years and 2000 charge cycle lifespan. But most importantly, the PowerTank Lithium LT can withstand higher temperatures than standard lithium cobalt batteries and will not be a fire danger if accidentally punctured. All this combined with its rugged design make PowerTank Lithium LT the perfect outdoor power supply.

Number of Batteries: 1 Lithium Metal batteries required. (included)


Brand: Celestron


Battery Cell Composition: Lithium Ion


Battery Capacity: 73.3 Watt Hours


Recommended Uses For Product: Camera, GPS, Phone, Tablet


Number of Batteries: 1 Lithium Metal batteries required. (included)


Brand: Celestron


Model Number: 18763


Model Name: PowerTank Lithium LT


Global Trade Identification Number: 33


UPC: 050234187633


Manufacturer: Celestron


External Testing Certification: Não Aplicável


Built-In Media: 60mm wide strap for tripod leg, AC charger, Battery pack (Lithium nickel cobalt manganese, Li(NiCoMn)O2), Telescope power cable (2m/6.5 feet long) with 5.5mm barrel connectors


Warranty Description: 2 Years


Battery Capacity: 73.3 Watt Hours


Voltage: 12 Volts


Reusability: Rechargeable


Amperage: 8 Amps


Unit Count: 1.0 Count


Battery Weight: 4.9 Kilograms


Item Dimensions: 7.5 x 4 x 2 inches


Item Weight: 1.4 Pounds


Antenna Location: Camera, GPS, Phone, Tablet


Battery Cell Type: Lithium Ion


Frequently asked questions

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Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

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View our full returns policy here.

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Top Amazon Reviews

    • Works as expected
Steady source of power for my Vespera Pro smart telescope. The outside temperature was around 2 or 5 Celsius. The powertank came in super handy to keep my pro charged up all night as planned. Small, deceptively light and works as expected.
Reviewed in the United States on April 16, 2026 by Aikya Shah
    • Much more convenient and powerful than the lead-acid battery Power Tank.
I bought this battery to replace the Celestron Power Tank that I had for over 10 years. That model used a lead acid battery, and it had two USB ports, along with a very bright LED flashlight. Unfortunately, it quit holding a charge. I decided to buy this model because it is smaller, more convenient, and it holds a charge far longer than the previous model. In a recent trip to Joshua Tree National Park to observe the Milky Way, I used this Power Tank to power my telescope, and it performed flawlessly. In fact, I had forgotten to charge it the first night, and it still had plenty of juice leftover for the second night. I highly recommend it. I hope this review helps. ... show more
Reviewed in the United States on August 7, 2025 by Ima Consumer
    • Excellent Power Source
This proved to be an excellent power source for my Celestron NexStar 8SE. My bulky old power tank (the one that looked like a small suitcase) was no longer holding a charge, so I decided to just go with the 8 AA batteries. Had problems getting the scope aligned, tracking, slewing etc. Apparently it didn't take long for the batteries to lose enough power to start causing problems. Decided to give this thing a try. What a difference! My scope is now operating perfectly. I haven't had this thing long enough to tell you how long it lasts, but I have used it for several nights now without recharging. (Admittedly, I don't stay out more than an hour or so in the winter.) A nice feature: It has indicator lights to let you know the level of charge. In order to avoid cord wrap issues, I velcroed it to the top of the battery compartment. This works great MOST of the time. But in this position, it is thick enough that it can interfere with the scope slewing to an object high in the sky. (Easily remedied by temporarily removing it to the tray below. Just be careful of cord wrap.) Anyway... I am very happy with this product so far, and greatly relieved that my expensive scope is now operating as it should! ... show more
Reviewed in the United States on January 1, 2021 by Loren E. Jackson, Jr.
    • Good performance
Once I used this power bank for 4 hours-relocating my AVX Go-to a lot because of some troubleshooting. More you relocate between celestial objects, more power consumed by the worm-gear. After 4 hours, only 1 LED bar went off! It means that the charge capacity is large enough to let you mess with your Goto for many hours-perhaps just overnight. I'm not sure which lithium battery it uses yet (if it's a low-quality battery, I will see the 'memory effect' quite quickly) For that, I'll keep observing. Experience until now, it worth spending my money. Side note: If you use AVX or other star-tracking solution, I do recommend checking out the firmware update. You will notice how the worm-gear sounds differently, after the update. As for my AVX+Nexstar Goto, there must have been quite an improvement after the firmware update. ... show more
Reviewed in the United States on May 31, 2020 by Joohyung Park
    • Will not power more demanding goto mounts
While the packaging claims it works with goto mounts, celestron support confirms it will not power a Losmandy G811G mount which requires a higher voltage and amperage. It powers my older Losmandy GM8 mount just fine.
Reviewed in the United States on April 28, 2026 by Clayton E. Cramer
    • Great battery!!
I needed a power supply for my Celestron Nexstar 5SE. I thought about getting something with more utility outside of powering a telescope, but decided that I should keep it simple. Plus this has a USB port, which is the most you can ask for without spending $200+ and hours researching trying to find the best battery. I charged it to 100% when I got it about 2-3 months ago. Sadly, it has been extremely cloudy for most of that time and I haven’t been able to use my scope very much. From the time that I’ve had it, this battery has probably been used for 10-12 hours. I just checked it, and I still have 3/4 of the battery indicator lights on! I may have charged it for a minute a while back, I can’t remember. But I’ve used it for hours at a time and never came close to running out of power. Honestly, I think it’s impossible to run out of juice in one night. Great product!! My ONLY gripe is with the strap. It’s too big for the tripod!! It slides down easily. It’s a problem that can be solved, but I don’t see why Celestron would make a strap that doesn’t work with its tripod. ... show more
Reviewed in the United States on April 2, 2020 by S.H.
    • Celestron lithium ion power tank
Review Image by Bob
When I got first battery it wouldn't change all the way. Amazon replaced it with ease and the 2nd one did the same thing so I called Celestron and they replaced it. Third times a charm I guess in this case. The battery fully charged and I was out for 6 hours in 20° temp the first few times I used it and at end of night still had 2 lights lit. I've been out several times now in 60° weather for 8 hours and still 2 lights lit. It's very light weight and I velcro it on top of my CPC 1100 mount in front of clutch. No worries of cord wrap. I am very pleased with this purchase. ... show more
Reviewed in the United States on July 24, 2020 by Bob
    • Works Great
This unit is working very well for me.
Reviewed in the United States on January 8, 2026 by Craig Ekstrand

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